baber/WOPTO huggingface dataset:
Patent GB-573222-A (GB)
Title: Improvements in or relating to means for coupling together two rotating shafts
IPC: F16D3/04
Filed: 1943-09-20
Abstract: 573,222. Universal joints. HADFIELD, B. M. Sept. 20, 1943, No. 15377. [Class 80 (ii)] A universal joint connecting shafts 1, 2 comprises brackets 3, 4 fixed to the shafts and having bearings 12, 13 for four rods 5 ... 8, extending from a centre boss 9. The rods 5 ... 8 may be fixed to the boss 9 and the bearings 12, 13 may permit of rotary and axial movement of the rods. Alternatively, the bearings may permit rotary movement only of the rods. In this case the rods are slidable in the boss 9. Again, the rods may be fixed to the brackets 3, 4, and have sliding and rotary freedom relatively to the boss. In each case, the brackets 3, 4 are of springy material so as to permit a small amount of twist to the bearing ends so that sudden changes of torque may be accommodated. The hub 11 of one of the brackets 4 may be splined to its shaft 2. In another construction, rods 15, 16, 19, 20, Fig. 2, extending from hubs 17, 18 on shafts 1, 2, pass through bearings 26 in lugs 22 extending from an annular or cross-shaped member 21. The lugs 22 or member 21 are springy. The rods may be fixed to the hubs 17, 18 and slide and rotate in the bearings 26, or they may slide in the hubs and rotate in the bearings, or they may be fixed to the bearings and slide and rotate in the hubs.
Patent GB-296815-A (GB)
Title: Improvements in or relating to electrical load-sharing apparatus
IPC: F01B25/14
Filed: 1927-06-10
Abstract: 296,815. Reyrolle & Co., Ltd., A., Burgess, W. A. A., and Cooke, N. June 10, 1927. Running generators in parallel; regulation, automatic.-Rotary converters A, generators, or arc rectifiers operating in parallel on out-put busbars H, H<1> are regulated for equality, of load by differential relays D and for constancy of output voltage by a regulator G, or in the case of generators for constancy; of frequency. Each coil C of the relays is energized by a current transformer A<1> or a shunt in the circuit of the corresponding machine and the other coil C<1> either from summation bus-bars connected to these transformers or from a transformer or shunt in the out-put end of the bus-bar H, H<1>. Over voltage causes the contact of relay G to engage bus-bars F which is thus energized and causes energization of all the lower-volt contactors E through contacts D<1> to operate motors J to move field regulators J<1>. Under voltage similarly causes energization of bus-bar F<1>. Underload on any machine causes contacts D<1> to open thereby preventing the regulator D from lowering the voltage of this particular machine and contacts D<3> to close to energize contactor E<1> and thus increase the voltage and thus the loading of this particular machine. Overload similarly effects the reverse operations by opening contacts D<2> and closing contacts D<4>. Mercury arc rectifiers are regulated by altering tappings on chokers in the anode circuits. As applied to generators, the relays D are replaced by wattmeter relays, and the regulator G by a frequency-responsive regulator as described in Specification 303,779, and both act upon the throttle of the turbine driving the generator.
Patent GB-630933-A (GB)
Title: Improvements in or relating to load-carrying vehicles
IPC: B62B3/06
Filed: 1947-06-12
Abstract: 630,933. Loading and unloading vehicles. LAYTON, D. A. June 12, 1947, No. 15549. [Classes 78 (iii) and 78 (iv)] In a vehicle of the kind provided with a loadsupporting platform or receptacle which can be raised or lowered relatively to the chassis to facilitate loading and unloading, the platform or receptacle is mounted on a jacking mechanism carried on the chassis, said mechanism comprising four girder members disposed in pairs, the members of each pair being pivotally connected together approximately at their centres and arranged for relative displacement with a scissorlike action to raise or lower the platform or receptacle, and the said mechanism is operable by hydraulic ram means coupled to a transverse shaft connected to one corresponding girder member of each pair. In the embodiment shown, the girders 6, 6a are operated to raise and lower the receptacle 5 by the piston rod 15 of a hydraulic ram unit which it attached to a member 14 connecting the pairs of girders. Pressure is supplied to the cylinder 17 of the ram unit by a pump driven by the engine of the vehicle. The girders 6a are pivoted at their lower ends to lugs on the chassis 1 and at their upper ends are slidably mounted on rods 10a. Similarly the girders 6 are pivoted at their upper ends on girders 5a and at their lower ends are slidably mounted on rods 12 secured to the chassis.
Patent GB-992532-A (GB)
Title: Improvements relating to the production of steel castings of low sulphur content
IPC: C21C1/02
Filed: 1963-04-19
Abstract: A method of making steel castings having a sulphur content of less than 0.005%, comprising treating molten pig iron in a ladle with a limebearing desulphurizing agent and a stream of nitrogen, thereby lowering the sulphur content of the molten pig iron to less than 0.005%; converting said pig iron into steel in a furnace using sulphur-free fuel; teeming said steel into ingots and mechanically working the said ingots and thus obtaining scrap steel of low sulphur content; forming in an electric furnace a charge of steel containing sufficient of said scrap steel to maintain the sulphur content therein below 0.005%; and teeming said electric furnace charge into steel castings.  The conversion process from pig-iron into steel may be carried out in a Bessemer or L/D converter.  Part of the electric furnace charge may comprise an increment of the desulphurized pig-iron, a <PICT:0992532/C6-C7/1> tolerated amount of other low sulphur content pig iron, or hot molten metal from the converting operation.  Examples are given of the composition of the metal at each stage of the process. Specification 906,127 is referred to.
Patent GB-256581-A (GB)
Title: Improvements in servo-brakes
IPC: B60T13/24
Filed: 1926-06-21
Abstract: 256,581. Bonnebeau, R., and Bonnebeau, G. Aug. 5, 1925, [Convention date]. Addition to 252.380. Void [Published under Sect. 91 of the Acts]. Fluid-pressure.-In a brake operated bv the suction of the engine and such as is described in the parent Specification the piston 5 and the rod 18 of the central valve 17 are connected bv links 30, 34 to a lever 32 pivoted at. 33 to an arm 31 which is apparently a member of the transmitting mechanism of the brake or the piston and valve, rod are connected by a cable passing over pulleys mounted on the arm 31. The purpose of these connections is apparently to cause the braking pressure exerted by the piston to react upon thepedal or other operating member which is connected to the valve rod 18.
Patent GB-1310714-A (GB)
Title: Engine support bushing assembly
IPC: B60K5/12
Filed: 1970-04-02
Abstract: 1310714 Engine mountings CATERPILLAR TRACTOR CO 2 April 1970 [25 June 1969] 15644/70 Heading B7H An engine mounting comprises a strut 12 formed with an outer metal ring 16 surrounding an inner metal ring 17 fitted on an engine trunnion 14, the inner and outer rings being spaced apart by a bush 18 of elastomeric material. A thin coating 21 of a solid and homogeneous low friction material, such as polytetrafluoroethylene, is formed on the outside of the inner ring to obviate binding between the inner ring or outer ring and the bush 18 in use. The bush 18 may be of rubber of approximately 80 durometer or plastics material of similar character. Flanges 19, 20 or (19a, 20a), Fig. 4 (not shown) confine the bush 18 between the inner and outer rings.
Patent GB-261439-A (GB)
Title: Improvements in vehicle brakes
IPC: F16D51/50
Filed: 1925-06-17
Abstract: 261,439. Girling, A. H. G. June 17, 1925. Blocks and shoes acting on drums.- In a two-shoe expanding type of brake the shoe, tending to move towards the expanding device. by the frictional drag of the revolving drum, is modified so that this movement is not acting in opposition to the expanding force, and it may increase the expanding force. Both shoes may be modified to obtain this effect in both directions of rotation of the brake drum. In Fig. 4 the shoes B are adapted to -move on antifriction bearings C, C' .carried by the expanding levers G and to bear at the ends D on the expander E when the brake is applied. The. shoe may bear on a lever P bearing on the expander opposite its axis so that its movement has no effect on the expander. The bearings may be rollers C mounted on pivots on the levers or a graphite impregnated surface C<1>, or a row of rollers between the shoe and the lever. The shoe may be divided into two parts and connected by a flexible joint S. The expanding levers G, pivoted at F. are contracted by springs K one of which may be connected to the shoes so as to pull them back from the expander, or a shoe or shoes may be returned by a spring M. The shoes are held against the levers by springs L or by the springs K or M, or by a guide R comprising slots in the lever G engaging with the ends D of the shoes. The shoes engage stops H when they move in the opposite direction to the expander. Fig. 3 shows a toggle expander in which the movement of the shoe B assists the expander U. Fig. 6 skows a wedge type of expander in which the shoe B has no effect. If the contact of the shoe B is upon an inclined plane as shown by the dotted line. the expander is assisted. In the modification shown in Fig. 7, the shoes B are moved by the levers G radially with respect to a ring X on which they are mounted, into contact with the brake drum the frictional drag of which tends to rotate the ring X about the pivot F on which it is mounted and assist the movement of the expander E by one or other of the members D according to the direction of rotation of the brake drum.
Patent GB-937024-A (GB)
Title: Arrangement for preventing icing at air intakes or like apertures in aircraft
IPC: B64D15/16
Filed: 1962-04-25
Abstract: 937,024. Gas turbine plant. HAMBURGER FLUGZEUGBAU G.m.b.H. April 25, 1962 [June 2, 1961], No. 15679/62. Class 110 (3). An arrangement for preventing icing at an aircraft air intake or like aperture, which is only used periodically, comprises a deflector in front of the aperture to deflect the air stream 9 around the aperture and cause turbulence in the stream. When the engine is in operation the deflector is withdrawn along the engine axis into the intake. Hinged flaps may be provided to close the intake when the engine is inoperative. Alternatively a member rotating about a transverse axis may close the intake and the deflector may be mounted on an arm pivoted to the engine casing. De-icing means, if necessary, need only to be provided on the deflector.
Patent GB-662010-A (GB)
Title: Improvements in latex-cement floors and floor covering materials
IPC: C04B28/02
Filed: 1949-06-14
Abstract: 662,010. Plastic compositions. RUBBER STICHTING. June 14, 1949 [Sept. 25, 1948], No. 15777/49. [A Specification was laid open to inspection under Sect. 91 of the Acts, Jan. 31, 1950.] Class 70 Floors or floor-covering materials in the form of sheets or tiles are prepared by laying and allowing to set a mixture of stabilized latex, cement, and ground palm kernel shells. The latex may be of natural or synthetic rubber. Approximately equal amounts of the shells and cement are used, and the rubber, present in the form of an aqueous dispersion, may amount to 50 per cent by weight of the cement. The mix is prepared by mixing the ground shells with part of the cement, adding water and then the latex to form a slurry, and finally adding the remainder of the cement. The mix may be spread directly on a sub-layer to which it adheres to form the floor, to a rigid loose base to which it adheres to form a tile. on to a base to which it does not adhere to form a loose sheet. The latex is stabilized by the addition of a cationic soap such as cetyl pyridinium bromide or a substituted aminoethyl oleylamide, or a non-ionic emulsifying-agent such as a polyglycol ether containing a fatty alcohol molecule such as oleyl, stearyl, or lauryl alcohol, or a fatty acid. The latex can be preliminarily vulcanized or may contain ingredients to produce a slow vulcanization after preparation. Specifications 480,881 and 536,978 are referred to.
Patent GB-726365-A (GB)
Title: Alkaline electric dry cell
IPC: H01M6/04
Filed: 1953-06-09
Abstract: 726,365. Batteries. MALLORY BATTERIES, Ltd. June 9, 1953 (June 14, 1952], No. 15813/53. Class 53. A primary cell having an alkaline electrolyte, a zinc anode and a depolarizer consisting of a compound of copper is provided with a chromate or dichromate dissolved in the electrolyte to prevent deposition of copper on the anode. The electrolyte may consist of a solution of sodium or potassium hydroxide containing a chromate of sodium, potassium, magnesium or lithium, and the depolarizer may be cuprous or cupric oxide or hydroxide mixed with graphite and may contain mercuric oxide or manganese dioxide. The Figure shows a cell comprising a steel container 10 sprayed with graphite on its inner surface and containing a compressed mixture 11 of copper oxide and graphite to which a small quantity of dry potassium dichromate may be added. Above the mixture 11 is a disc 12 of ceramic or porous glass, glass fibre, fibrous styrene, or paper, and a mass 13 of paper saturated with the electrolyte and chromate solution. Alternatively the disc 12 and paper 13 may be replaced by discs punched from a material obtained by first immersing paper in an alkaline solution of polyvinyl alcohol and potassium hydroxide and then passing it between rollers and immersing it in a solution of potassium hydroxide containing zinc oxide and a bichromate which gels the alcohol. The zinc anode 14 is made from a disc or cup of zinc which is first amalgamated by immersion in a solution of mercury chloride and ammonium chloride and then pressed and crushed into a tinned steel cup 15 to form a porous disc of zinc amalgam. An insulating grommet 16 separates the members 10, 15. Specification 610,719 is referred to.
Patent GB-238339-A (GB)
Title: An improved electric generator and battery protector
IPC: H02J7/22
Filed: 1924-07-01
Abstract: 238,339. Sampson, T. W., and Chappell, W. C. July 1, 1924. Addition to 215,346. Supplying consuming devices from variable-speed generators. A protector for an electric generator installed on a motor vehicle and used for charging storage batteries, comprises cores 1 2 wound with thick wire coils J and fine wire coils I, M and a frame F having a hinged top F1. A spring E normally holds the top F1 in a raised position so that a contact P2 carried thereby is in contact with an upper contact PI carried by a plate W secured to, but insulated from, the frame F. In the attracted position of the top F1, the contact P2 engages a contact P3 on a plate X similarly attached to the frame F. The frame F to which one end of the coil I is connected is in contact with a plate C, having a lug connected to the generator terminal A2. The plate C is insulated from a base A which has lugs A1 for mechanically attaching the device to the generator and also for forming an earth E2 for one end of the coils M and also of the coil J on core 2. The coil J on core 1 is connected to a lug B1 which is connected to the battery and usual cut-out through wire B2. On an abnormal rise of voltage, the device functions similarly to that described in the parent Specification. The excitation due to the shunt coil M neutralizes that of the series coil J on core 1 causing attraction of the top F1 and separation of contacts P1, P2. Consequently the battery circuit is broken and both fine coils I, M aid each other. When contacts P2, P3 engage, the generator is earthed through the frame F and series coil J on core 2, the top being latched in its attracted position by a spring G. Should the usual cut-out in the battery circuit B2 fail, and the battery start to discharge back through the generator when stationary, the current through coils J and M in parallel on core 1 attracts the top F1 breaking the discharge circuit at the contacts PI, P2, and causing coils I, M to be paralleled across the battery. The top F1 is thus fully attracted and latched as before. The latch can be released through an aperture in the cover Cl of the device.
Patent GB-1414446-A (GB)
Title: Flashbulb unit
IPC: G03B15/04
Filed: 1974-04-10
Abstract: 1414446 Flash units PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 10 April 1974 [12 April 1973] 15844/74 Heading G2X Percussive flash-bulbs 2 are fired by being struck by arms 11 of helical springs 5, the centres of the bulbs 2 being arranged in a circle 15 and the helical portions 6 of the springs 5 being arranged within this circle to reduce the size of the unit. As shown, the striker arm 11 of each spring 5 is tensioned by the helical portion 6 and held by an end portion 10. A pin 12 of a camera lifts arm 11 free of end 10 so that arm 11 can move into contact with the bulb's firing tube 13, Fig. 2, (not shown).
Patent GB-601169-A (GB)
Title: Improvements in thread gages
IPC: G01B3/40
Filed: 1945-06-21
Abstract: 601,169. Gauging-apparatus. NEWTON, E. P. (Bryant Chucking Grinder Co.). June 21, 1945, No. 15872. '[Class 106 (ii)] Each of the anvils of a gauge for threads having at least one steep face comprises at least an arcuate portion of an annular grooved roll tapered at an angle greater than the lead angle of the thread to be gauged and being inclined to the work axis at an angle equal to the anvil taper. In the embodiment shown in Fig. 1, the gauge comprises a pair of fixed anvils 10 and a movable anvil 11 supported by an arm 12 pivoted by cross-springs 13, 14 and pressed towards the fixed anvils by a spring 16. Movement of the anvil 11 is indicated on a dial indicator 20. Each of the gauging elements comprises a tapered roll 25 with annular grooves and held in position by a screw 26. To avoid interference the roll is tapered at an angle greater than the lead angle of the thread to be gauged. The axis of each anvil is tilted to an angle equal to the angle of taper to' bring the line of gauging action parallel to the work. Each of the anvils is offset axially by an amount equal to the thread lead for the angular distance between the anvils. In modifications the gauge may be of the go and not-go type, or if it is desired to measure square threads, two sets of anvils, each set comprising three anvils, may be provided. The anvils are arranged in pairs on pivoted levers with their smaller diameter ends oppositely directed.
Patent GB-1506738-A (GB)
Title: Clutches
IPC: F16D13/38
Filed: 1976-04-07
Abstract: 1506738 Friction clutches AUTOMOTIVE PRODUCTS Ltd 7 April 1976 [17 April 1975] 15929/75 Heading F2C In a friction clutch a plurality of spacers is provided between the clutch cover 2 and the flywheel 1, bolts 3 which pass through the spacers 4 connecting the cover to the flywheel. The spacers may guide the presser plates 7, 8 for axial movement as shown in Fig. 3 where a spacer 4 is of aluminium and is provided with wear resistant pins 10 which contact the sides of an aperture 9 of the presser plate 8. In an alternative embodiment (Fig. 4, not shown) the spacers are integral with the clutch cover. The pins 10, which are formed by rolling steel strip, may be replaced by inserts of sintered nickel iron, of trapezoidal section, or by spring steel clips (Fig. 5, not shown). The clutch shown is a twin-plate type but it may alternatively be a single plate clutch. A diaphragm spring 6 engages the clutch.
Patent GB-1175461-A (GB)
Title: Improvements in or relating to the Electro-Deposition of Chromium-Containing Coatings
Inventor: NELSON JOHN BAILEY JR
IPC: C25D3/08
Filed: 1967-04-06
Abstract: 1,175,461. Electro-depositing chromium. DIAMOND ALKALI CO. April 6, 1967 [April 8, 1966; Nov.18, 1966], No.15939/67. Heading C7B. Black Cr-containing coatings are electrodeposited on a conductive member, e.g. of Cu, Zn, Fe, steel or brass, as a cathode in an aqueous solution free of SO 4  <SP>--</SP> ions and containing: CrO 3  e.g. 60 g/1 to saturation; F- as catalyst e.g. 0À03 to 1 g/1 as HF, HBF 4 , H 2 SiF 6  or a water-soluble alkali metal, alkaline earth metal or ammonium salt thereof (or a reaction product of CrO 3 , sucrose and H 2 SiF 6  containing 25% Cr, 25% F and 16% Si); and as additive (1) an inorganic N-containing compound e.g. 0À35 to 3À5 g/1 N0 2  as HNO 3 , HNO 2 , alkali metal (Na), alkaline earth metal (Ca) or ammonium salt thereof, and/or (2) Cr<SP>+++</SP> e.g. 1 to 25 g/1 preferably formed in solution by adding sucrose or H 2 O 2 ; D.C. is passed between the cathode and an anode e.g. of lead (alloy) at a C.D. of 30-1500 A.S.F. at 60-140F. Ba<SP>++</SP> ion may be added e.g. 5 to 20 g/1 BaCO 3  to ensure a SO 4  <SP>--</SP> free solution. The member to be plated may be a brass panel having a conventional Cr-plated surface or a Ni strike plate. Cr<SP>+++</SP> may also be obtained by "preelectrolysis" instead of use a reducing agent. Specifications 829,429 and 813,445 are referred to.
Patent GB-583970-A (GB)
Title: Improvements relating to electricity distributing systems and switching means for use therein
IPC: H01H51/08
Filed: 1944-08-21
Abstract: 583,970. Electromagnetic switches. RAYBOULD, S. Aug. 21, 1944, No. 15941. [Class 38 (v)] Successive energizations of an electromagnet g cause a contact ball i to move alternately in opposite directions along a circular track t into and out of engagement with a contact h. The pivoted armature q, when attracted by the magnet, actuate a lever v which gives an impulse to the ball i.
Patent GB-1078985-A (GB)
Title: A method for the extraction of the germ from kernels of maize
Inventor: GRASSI LUIGI
IPC: A23L7/152
Filed: 1965-04-14
Abstract: 1,078,985. Extracting germ from maize. OCRIM S.p.A. April 14, 1965, No. 15946/65. Heading A2Q. A method of extracting germ from maize comprises subjecting the maize kernels to a breaking process to produce a mixture of germ grains, endosperm fragments, meal, bran and unbroken kernels, separating the components of the mixture by difference of geometrical dimensions to produce a stream consisting substantially of germ grains and endosperm fragments and then separating the germ from the endosperm by the difference of densities. Breaker 1 breaks maize supplied by hopper 7, and separates most of the brain and meal which are passed to sifter 2, from the mixture which is passed to sifter 2<SP>1</SP>. Sifter 2<SP>1</SP> produces four streams, two consisting substantially of germ grains and endosperm fragments, and one each of unbroken kernels, and bran and meal. The unbroken kernels are returned to breaker 1. The aspirators 3, 3<SP>1</SP> receive the germ and endosperm streams and remove any remaining bran therefrom. The germ grains and endosperm fragments are then separated from each other by density tables 4, 4<SP>1</SP>. Dust is removed from sifter 2<SP>1</SP>, aspirators 3, 3<SP>1</SP> and density tables 4, 4<SP>1</SP> by fan 6 to cyclone dust collector 5.